Developer Tools

Your premium collection of simple, fast, and free online utilities. Format, validate, convert, secure, and edit developer data client-side safely in your browser.

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JSON Formatter & Validator

Format and validate JSON input quickly for APIs and web development.

JWT Decoder

Decode JWT headers and payloads to inspect authentication tokens.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 content back to plain text.

UUID Generator

Create version 4 UUIDs for databases, APIs, and system identifiers.

Hash Generator

Generate MD5 and SHA-256 hashes for text and strings.

API Response Formatter

Format and minify JSON responses from APIs for easy debugging.

Regex Tester

Test regular expressions against sample text and inspect matches.

Cron Expression Generator

Build cron schedules for automation and server tasks.

Invoice Generator

Create simple invoice previews for services and freelance work.

GST/VAT Calculator

Calculate tax amounts and totals with a chosen tax rate.

Profit Margin Calculator

Calculate profit and margin percentage from cost and selling price.

Payroll Calculator

Estimate salary, deductions, and take-home pay for payroll planning.

Currency Converter

Convert between major currencies for travel, budgeting, and estimates.

Loan EMI Calculator

Estimate monthly installments, total interest, and total repayment for a loan.

Nepali Date Converter (BS ↔ AD)

Convert Nepali Bikram Sambat dates to Gregorian dates and vice versa.

Land Unit Converter

Convert between Nepali land units such as Ropani, Aana, Dhur, and Bigha.

Merge PDF

Combine multiple PDF files into one document with a single click.

Split PDF

Split a PDF into two parts at a page you choose.

Compress PDF

Reduce PDF file size for easier sharing and storage.

PDF to Word

Convert a PDF into a basic Word document with extracted text.

Word to PDF

Convert a Word document into a straightforward PDF file.

OCR PDF

Extract text from scanned PDFs or images using OCR.

Image to PDF

Turn one or more images into a polished single-page PDF collection.

Image Compressor

Reduce file size for JPG and PNG files while keeping image quality balanced.

Background Remover

Remove a solid-color background from uploaded images and make it transparent.

Image Resizer

Resize images quickly to your preferred width and height.

WebP Converter

Convert JPG or PNG files into the modern WebP image format.

PNG to JPG

Convert PNG files to JPG with a white background for broader compatibility.

Favicon Generator

Create multiple favicon sizes from a single uploaded image.

Business Name Generator

Generate creative business name ideas for startups and brands.

QR Code Generator

Create QR codes for URLs, text, and simple messages.

QR Code Scanner

Scan and decode QR codes using your camera or an image file.

WiFi QR Generator

Create QR codes to connect to WiFi networks without typing passwords.

Email QR Generator

Generate QR codes to quickly compose emails on mobile devices.

SMS QR Generator

Generate QR codes to send pre-defined text messages automatically.

vCard QR Generator

Create contact business card QR codes for quick scanning.

Barcode Generator

Generate standard CODE128, EAN-13, and UPC barcodes online.

Barcode Reader

Scan and read barcode numbers from camera feeds or image uploads.

Meta Tag Generator

Create SEO-friendly title, description, and keyword tags.

Open Graph Preview

Generate social share previews and OG meta tags.

Robots.txt Generator

Create robots.txt rules to guide crawler access.

Sitemap Generator

Create XML sitemaps from a list of URLs.

Keyword Density Checker

Check how often a keyword appears in your content.

Slug Generator

Generate clean, SEO-friendly URL slugs from any title.

UTM Link Builder

Create campaign URLs with UTM parameters for tracking.

Email Signature Generator

Create a professional email signature with your contact details.

Hashtag Generator

Create relevant hashtags for social media posts and campaigns.

Bio Generator

Create polished bios for profiles, portfolios, and introductions.

YouTube Title Generator

Create catchy title ideas for videos, tutorials, and channel content.

Thumbnail Text Generator

Create short, catchy text ideas for thumbnails, banners, and headlines.

Random Password Generator

Generate highly secure, customizable random passwords client-side.

API Key Generator

Generate secure random API keys with customizable prefixes and lengths.

CSRF Token Generator

Create cryptographically secure CSRF tokens for web form security.

Secure Token Generator

Generate unique, cryptographically strong tokens for sessions and keys.

UUID v4 Generator

Generate single or batch RFC 4122 version 4 UUIDs with custom formats.

RSA Key Generator

Generate secure RSA public and private key pairs in PEM format.

AES Encryptor

Encrypt sensitive text data securely using strong AES GCM/CBC algorithms.

AES Decryptor

Decrypt AES GCM/CBC encrypted text with a password and IV.

JWT Validator

Decode and validate JSON Web Tokens (JWT) for signature and claims.

Hash Identifier

Identify unknown cryptographic hashes by matching their byte patterns.

URL Parser

Parse any URL string to extract host, paths, queries, and hash components.

URL Shortener

Quickly and safely shorten any URL using public API integration.

UTM Builder

Add UTM tracking parameters to campaign URLs for analytics.

Robots.txt Generator

Generate clean robots.txt rules to guide search engine crawlers.

Sitemap Generator

Create valid XML sitemaps to optimize website indexation.

Meta Tag Generator

Generate HTML search engine meta tags for web pages.

Open Graph Generator

Create social sharing Open Graph meta tags for Facebook and LinkedIn.

Twitter Card Generator

Generate social media card meta tags to optimize layouts on X.

Canonical URL Checker

Retrieve and check canonical link tags defined on any webpage.

Redirect Checker

Analyze and trace HTTP redirect hops (301/302) for any URL.

DNS Lookup

Resolve DNS records (A, MX, CNAME, TXT) for any host or domain.

WHOIS Lookup

Fetch domain registration logs and ownership data via WHOIS protocol.

SSL Checker

Validate domain SSL certificate details, authority, and health status.

IP Lookup

Resolve geographic location, coordinates, and ISP details of an IP.

User Agent Parser

Parse and analyze user agent strings to extract OS and browser details.

HTTP Header Checker

Fetch and inspect HTTP response headers and security headers of a URL.

Ping Tool

Check host latency and packet response times via TCP handshakes.

Length Converter

Convert values between standard metric and imperial length units.

Weight Converter

Convert weights and masses between metric and imperial systems.

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin scales instantly.

Area Converter

Convert area sizes between square meters, acres, and hectares.

Volume Converter

Convert capacities and volumes between liters, cups, and gallons.

Speed Converter

Convert velocities between mph, km/h, knots, and m/s.

Pressure Converter

Convert pressure units including pascals, bar, psi, and atm.

Energy Converter

Convert energy values between joules, calories, and kilowatt-hours.

Fuel Converter

Convert fuel efficiency values between MPG, L/100km, and km/L.

Angle Converter

Convert angular measurements between degrees, radians, and grads.

Data Storage Converter

Convert data sizes between bits, bytes, MB, GB, and TB (base 1000/1024).

Age Calculator

Determine exact age in years, months, and days from date of birth.

Date Difference Calculator

Calculate total days and exact calendar duration between two dates.

Working Days Calculator

Calculate business days, excluding custom weekends and holidays.

Time Zone Converter

Convert calendar date-time values between global timezones.

Countdown Timer

Set up visual countdown widgets for events and project deadlines.

Stopwatch

Track splits, lap times, and precise millisecond intervals.

Calendar Generator

Generate, customize, and print calendar sheets for any month/year.

Week Number Calculator

Calculate ISO week numbers and starting/ending week dates.

Leap Year Checker

Check if a year is a leap year using standard divisibility checks.

Color Picker

Select colors visually and copy HEX, RGB, HSL, and CMYK codes.

HEX to RGB

Convert hexadecimal color values to RGB/RGBA notation.

RGB to HEX

Convert RGB/RGBA color values to standard hex strings.

HEX to HSL

Convert hexadecimal values to HSL (Hue, Saturation, Lightness).

HSL to HEX

Convert HSL parameter values back to standard hex strings.

Color Palette Generator

Generate matching color palettes based on standard harmonies.

Gradient Generator

Design linear and radial gradients with CSS output previews.

CSS Gradient Generator

Create complex multi-stop CSS background gradients.

Contrast Checker

Check contrast ratios of text on backgrounds against WCAG guidelines.

Color Blindness Simulator

Preview images or colors under various color vision deficiencies.

Tailwind Color Generator

Generate 50-950 Tailwind color scales from a single base color.

Password Generator

Generate secure random passwords with customizable symbols and sets.

Password Strength Checker

Check password entropy and estimate crack times with zxcvbn.

Password Hash Generator

Generate multiple cryptographic hashes from a plaintext string.

MD5 Generator

Compute 128-bit MD5 hashes for payloads and verification strings.

SHA1 Generator

Generate secure 160-bit SHA-1 hashes client-side.

SHA256 Generator

Generate secure SHA-256 hashes online in seconds.

SHA512 Generator

Generate secure, high-entropy 512-bit SHA-512 hashes.

bcrypt Generator

Securely hash passwords using bcrypt work factor rounds.

Hash Compare

Verify if a plain string matches a hash, or compare two hashes.

Random String Generator

Bulk generate random alphanumeric or customized symbol strings.

Word Counter

Count words, characters, sentences, paragraphs, and estimate reading time.

Character Counter

Count total characters with and without spaces in any text.

Sentence Counter

Count sentence occurrences and calculate average words per sentence.

Paragraph Counter

Count paragraph blocks and average word lengths per paragraph.

Text Reverser

Reverse characters, words, or lines in any text block.

Remove Duplicate Lines

Filter and remove repeated duplicate lines from lists and text.

Sort Lines

Sort lines alphabetically, numerically, or by length in any order.

Shuffle Lines

Randomly reorder and shuffle lines in any multiline text list.

Random Text Generator

Generate random readable sentence blocks for test data and mockups.

Lorem Ipsum Generator

Generate standard Lorem Ipsum placeholder text for designs and wireframes.

Case Converter

Convert text between UPPERCASE, lowercase, camelCase, snake_case, and more.

URL Slug Cleaner

Strip query params, fragments, and special characters from URL slugs.

Text Compare

Compare two texts side-by-side and detect matches or differences.

Text Diff

Visualize word-level additions and deletions between two text versions.

Remove Extra Spaces

Strip double spaces, leading/trailing whitespace, and blank lines.

Line Number Generator

Prepend sequential numbers to lines of any multiline text input.

Find and Replace

Find and replace text strings or regex patterns in any text block.

Capitalize Text

Capitalize every word, sentence, or line in your text instantly.

Reverse Words

Reverse the word order in sentences or reverse words on each line.

SQL Formatter & Validator

Format, beautify, and minify SQL queries for MySQL, PostgreSQL, SQLite, and MS SQL Server online.

HTML & CSS Minifier / Beautifier

Compress HTML and CSS payload sizes or format minified code cleanly online.

JavaScript & TypeScript Minifier / Beautifier

Minify JS and TS code payloads or un-minify obfuscated scripts online.

YAML ↔ JSON Converter

Convert configuration files bi-directionally between YAML and JSON formats online.

Markdown ↔ HTML Converter

Convert Markdown text to HTML code with live visual preview online.

Base64 ↔ Image Converter

Convert images to Base64 Data URIs or decode Base64 strings back to downloadable images online.

GraphQL Query Formatter

Format, prettify, and validate GraphQL queries, mutations, and schemas online.

IP Subnet & CIDR Calculator

Calculate network address ranges, broadcast IPs, netmasks, and usable host counts from CIDR blocks.

.htaccess & .htpasswd Generator

Generate Apache basic auth credentials and common redirect rules (Enforce HTTPS, Remove www, 301 Redirects).

Common Ports & Protocol Lookup

Quick interactive lookup for standard network ports, transport protocols (TCP/UDP), and services.